The Oxford Thesaurus An A-Z Dictionary of Synonyms - splurge n.

1) display, show, ostentatiousness, extravagance, indulgence, access, splash, burst, outburst, spree: In his final splurge he bet everything on the number 14. --v. 2) Often, splurge on. squander or dissipate or waste or burn (up) or throw away money (on) , show off or flaunt one's money, Slang blow everything (on) : Victor splurged on toys for the children.